About this task
Preparing the operating
system involves such changes as allocating disk space and installing
patches to the operating system. IBM tests WebSphere Application Server
products on each operating system platform. Such tests verify whether
an operating system change is required for WebSphere Application Server products to
run correctly. Without the required changes, WebSphere Application Server products do
not run correctly.
- Log on to a user ID that belongs to the administrator group.
Log on as a member of the administrator group to successfully
install the product. You cannot create Windows services
from a user ID that does not belong to the administrator group. The
creation of Windows services requires the
user to have the advanced user rights Act as part of the
operating system and Log on as a service.
During
the procedure, you can assign another ID or the one you are using
to install as the user who will log on the Windows service.
That user requires the advanced user right: Log on as a service.
However,
if you do not have this advanced user right or if the user ID that
is to log on the Windows service does not have
the advanced user right, Installation Manager assigns the advanced
right to the user.
- Optional: Download and install a web browser.
If your system does not have a default browser or the browser
has been corrupted or installed incorrectly, then you might experience
errors when trying to open various links in the installation panels.
- Stop all Java processes
related to WebSphere Application
Server on the machine where you are installing the product.
- Stop any web server process such as the IBM HTTP Server.
- Stop all instances of the process_spawner.exe program.
You can skip this step if the process_spawner.exe does
not exist.
Note: The process_spawner.exe is a
required binary for the WebSphere Application Server to function
properly. The process_spawner.exe is not intended
to be called directly and is a core functionality of the WebSphere
Application Server on Windows.
- Provide adequate disk space.
The amount of
disk space required varies with the number of features or products
installed. If you are installing the product using Installation Manager,
the installation summary panel indicates the approximate amount of
disk space required based on the features and products you have selected.
Installing
all features and products requires approximately 2 GB of disk space.
This estimate includes the following products, components, and features:
- Main application server product installation
- Profiles
- Sample applications
- IBM HTTP Server
- Web Server Plug-ins
- Application Client for WebSphere Application Server
If you plan to migrate applications and the configuration
from a previous version, verify that the application objects have
enough disk space. As a rough guideline, plan for space equal to 110
percent of the size of the applications.
- Verify that prerequisites and corequisites are at the required
release levels.
Although Installation Manager checks
for prerequisite operating system patches, review the prerequisites
on the Supported hardware and software website if
you have not done so already.
Refer to the documentation for
non-IBM prerequisite and corequisite products to learn how to migrate
to their supported versions.